Learning using online methods is indeed beneficial in several ways, but nursing study programs, learning faces problems. Problems such as lack of focus and concentration become obstacles how students understand course material, especially for topics related to skills. This contributes knowing the relationship between understanding level through an process. research a type quantitative with cros...

Osmotic concentration (OC), a form of forward osmosis (FO) but without draw solution recovery, can be applied for reducing wastewater disposal volumes in the oil & gas industry. Within this industry, is often disposed by injection through wells into deep underground reservoirs. By volumes, sustainability reservoir improved. In application OC, seawater or brine from desalination plant serves as ...

Bioleaching processes for extraction of Cu and Mo from molybdenite cons. are more environmentally friendly and consume less energy than conventional technologies, yet less economically efficient. One necessary step towards arriving at a cost-effective bioleaching process is using appropriate methodology to optimize pertinent factors in such processes. To this end, the present study employed Res...

Background: High concentration of salt makes biological treatment impossible due to bacterial plasmolysis. The present research studies the process of electrochemical oxidation efficiency and optimal levels as important factors affecting pH, salt concentration, reaction time and applied voltage. Methods: The sample included graphite electrodes with specifications of 2.5 cm diameter and 15 cm he...

Chemical investigation of the aerial parts of Illicium simonsii resulted in the isolation of nine new compounds, simonsols A-E (1-5), simonsins A-B (7-8), terpene-sesquineolignans, clovanedunnianol (9), and p-menthadunnianol (10). Compound 5 was equilibrated with 7 as an inseparable mixture. The structures were elucidated by extensive NMR and MS analysis. Compounds 9, 10, and the mixture of 5 a...